Brand New and High Quality Type:Auxiliary Device Material:Abs+Nylon Color:Blue,pink Size: 12x10.5cm/4.72x4.13inch Package Include: 1PC Wrist Brace Tool Descriptions: 1.Protect Wrist:It is easy to grasp the correct pen holding posture,protect the wrist, and write for a long time without getting tired 2.Adjustable:Easy to wear, easy to adjust.Suitable for wrist circumference 10cm-18cm/3.94inch-7.09inch 3.Breathable:Learning Writing Tool is breathable and wear resistant. 4.Comfortable Writing Posture :Pen control corrector can correct the wrong pen holding posture in time and quickly develop the correct pen holding habit. Tips: 1.Due to the light and monitors effect, colors may have lightly difference. 2.Please allow slightly size errors due to manual measurement. Thank you for your understanding!